National Weather Service Forecast for: Weymouth MA
Issued by: National Weather Service Norton, MA
Updated: 2:22 pm EDT Jul 26, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 62. Southwest wind around 9 mph.
Mostly Cloudy

 Sunday

Sunday: Showers and thunderstorms likely, mainly before 2pm. Mostly cloudy, with a high near 77. Southwest wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Sunday
Night
Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 66. South wind 6 to 9 mph. Chance of precipitation is 20%.
Slight Chance
T-storms then
Mostly Cloudy
 Monday

Monday: Sunny and hot, with a high near 90. West wind around 5 mph becoming light and variable.
Hot

 Monday
Night
Monday Night: Mostly clear, with a low around 70. Southwest wind around 6 mph.
Mostly Clear

 Tuesday

Tuesday: Sunny and hot, with a high near 95. Southwest wind 5 to 7 mph.
Hot

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 70. Southwest wind around 6 mph becoming west after midnight.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 88. North wind around 6 mph becoming east in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: A chance of showers after 2am. Partly cloudy, with a low around 69. South wind around 5 mph becoming west after midnight. Chance of precipitation is 30%.
Partly Cloudy
then Chance
Showers
Lo 62 °F Hi 77 °F Lo 66 °F Hi 90 °F Lo 70 °F Hi 95 °F Lo 70 °F Hi 88 °F Lo 69 °F

Air Quality Alert
Heat Advisory
 

Tonight
 
 Mostly cloudy, with a low around 62. Southwest wind around 9 mph.
Sunday
 
 Showers and thunderstorms likely, mainly before 2pm. Mostly cloudy, with a high near 77. Southwest wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
 
 A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 66. South wind 6 to 9 mph. Chance of precipitation is 20%.
Monday
 
 Sunny and hot, with a high near 90. West wind around 5 mph becoming light and variable.
Monday Night
 
 Mostly clear, with a low around 70. Southwest wind around 6 mph.
Tuesday
 
 Sunny and hot, with a high near 95. Southwest wind 5 to 7 mph.
Tuesday Night
 
 Mostly clear, with a low around 70. Southwest wind around 6 mph becoming west after midnight.
Wednesday
 
 Sunny, with a high near 88. North wind around 6 mph becoming east in the afternoon.
Wednesday Night
 
 A chance of showers after 2am. Partly cloudy, with a low around 69. South wind around 5 mph becoming west after midnight. Chance of precipitation is 30%.
Thursday
 
 A chance of showers. Mostly cloudy, with a high near 81. Northwest wind around 7 mph becoming east in the afternoon. Chance of precipitation is 40%.
Thursday Night
 
 A chance of showers. Mostly cloudy, with a low around 62. South wind around 6 mph becoming north after midnight. Chance of precipitation is 30%.
Friday
 
 Mostly sunny, with a high near 78. North wind around 7 mph.
Friday Night
 
 Mostly clear, with a low around 58. Northeast wind around 6 mph becoming northwest in the evening.
Saturday
 
 Sunny, with a high near 79. Northwest wind around 7 mph becoming northeast in the afternoon.

 

Forecast from NOAA-NWS for Weymouth MA.